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Parametrization of the Hybrid Potential for Pairs of Neutral Atoms
Kevin Cahill
The hybrid form is a combination of the Rydberg potential and the London inverse-sixth-power energy. It is accurate at all relevant distance scales and simple enough for use in all…
Helices in Biomolecules
Kevin Cahill
Identical objects, regularly assembled, form a helix, which is the principal motif of nucleic acids, proteins, and viral capsids.
Rydberg-London Potential for Diatomic Molecules and Unbonded Atom Pairs
Kevin Cahill, V. Adrian Parsegian
We propose and test a pair potential that is accurate at all relevant distances and simple enough for use in large-scale computer simulations. A combination of the Rydberg potentia…
Computational Consequences of Neglected First-Order van der Waals Forces
Kevin Cahill, V. Adrian Parsegian
We have computed the widely neglected first-order interaction between neutral atoms. At interatomic separations typical of condensed media, it is nearly equal to the 1/r^6 second-o…